WO1980001908A1 - Methode de fabrication de fibres optiques - Google Patents

Methode de fabrication de fibres optiques Download PDF

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Publication number
WO1980001908A1
WO1980001908A1 PCT/US1980/000208 US8000208W WO8001908A1 WO 1980001908 A1 WO1980001908 A1 WO 1980001908A1 US 8000208 W US8000208 W US 8000208W WO 8001908 A1 WO8001908 A1 WO 8001908A1
Authority
WO
WIPO (PCT)
Prior art keywords
fiber
stub
drawn
preform
fabricating
Prior art date
Application number
PCT/US1980/000208
Other languages
English (en)
Inventor
S Miller
Original Assignee
Western Electric Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Western Electric Co filed Critical Western Electric Co
Priority to DE803036779A priority Critical patent/DE3036779A1/de
Publication of WO1980001908A1 publication Critical patent/WO1980001908A1/fr

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
    • C03B37/01—Manufacture of glass fibres or filaments
    • C03B37/012—Manufacture of preforms for drawing fibres or filaments
    • C03B37/014—Manufacture of preforms for drawing fibres or filaments made entirely or partially by chemical means, e.g. vapour phase deposition of bulk porous glass either by outside vapour deposition [OVD], or by outside vapour phase oxidation [OVPO] or by vapour axial deposition [VAD]
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
    • C03B37/01—Manufacture of glass fibres or filaments
    • C03B37/02—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor
    • C03B37/025—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor from reheated softened tubes, rods, fibres or filaments, e.g. drawing fibres from preforms
    • C03B37/0253—Controlling or regulating
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
    • C03B37/01—Manufacture of glass fibres or filaments
    • C03B37/02—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor
    • C03B37/025—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor from reheated softened tubes, rods, fibres or filaments, e.g. drawing fibres from preforms
    • C03B37/027—Fibres composed of different sorts of glass, e.g. glass optical fibres
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2205/00—Fibre drawing or extruding details
    • C03B2205/12—Drawing solid optical fibre directly from a hollow preform
    • C03B2205/13—Drawing solid optical fibre directly from a hollow preform from a hollow glass tube containing glass-forming material in particulate form, e.g. to form the core by melting the powder during drawing

Definitions

  • the invention provides a means for ensuring that the resulting fiber will have the desired transmission characteristics.
  • FIG. 1 shows a first embodiment of the invention
  • An oven 13 surrounds the supporting member and serves to consolidate the soot deposited by the burners and to maintain the resulting glass in a molten state so that it can be drawn into a fiber.
  • the present invention employs the "vapor-phase axial-deposition" (VAD) process described in U. S. patent 3,966,446. Briefly, in this process each burner burns glass precursor materials to produce a glass soot 14, 15 which is deposited in the supporting member 10 . In the s tart-up of the process , the aperture 16 at the narrow end of supporting member 10 is covered, permitting the build-up of, and the consolidation of the particulate glass precursor material to form a small "stub" preform 18. The size of the stub is not critical. All that is required is an amount that is convenient to work with. When this build-up is complete, the aperture cover (not shown) is removed and the fiber drawing process is commenced. Thereafter, a steady state condition is obtained wherein the soot is being deposited and consolidated at one end of the stub preform while the fiber is being simultaneously drawn from the other end of the stub.
  • VAD vapor-phase axial-deposition
  • the supporting member and the stream of particulate material or materials may be rotated relative to each as the fiber is being drawn. In the illustrative two-burner embodiment shown, it is advantageous to rotate the supporting member
  • Streams 47, 48 and 49 of precursor materials, having different refractive indices, are consolidated in supporting member 58 from which a fiber 50 is drawn.
  • the fiber is illuminated along a small portion of its length by means of a suitable source 51.
  • the illuminated portion is immersed in an index-matching material contained in a vial 52 through which the fiber is passed.
  • a detector 53 for sensing the radiation from the fiber is suitably located adjacent to the fiber.
  • the measurements thus made are coupled to a computing unit 54 which makes the necessary calculations and compares the measured index profile with a desired index profile stored therein. If their difference is within allowable limits, no action is required. If, however, the measured index profile falls without these limits, corrective steps can be taken. The nature of these steps depends upon the strategy selected. For example, the typical graded index fiber has a power law index profile given by
  • An alternate strategy may be to control the process such that the average value of the power law coefficient, ⁇ , over a given length of fiber assumes a desired optimum value.
  • ⁇ the average value of the power law coefficient

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacture, Treatment Of Glass Fibers (AREA)

Abstract

Les etapes separees de formation d'une preforme d'une fibre optique puis d'etirage de la fibre sont combinees en un procede essentiellement simultane ou une preforme de "souche" (18) est formee par la methode dite de depot axial a phase vapeur tandis que la fibre (17) est simultanement etiree de l'extremite de la souche qui est opposee a l'extremite par laquelle le materiau particulaire (14, 15) est depose.
PCT/US1980/000208 1979-03-16 1980-03-03 Methode de fabrication de fibres optiques WO1980001908A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE803036779A DE3036779A1 (en) 1979-03-16 1980-03-03 Method of fabricating optical fibers

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/020,995 US4230473A (en) 1979-03-16 1979-03-16 Method of fabricating optical fibers
US20995 1979-03-16

Publications (1)

Publication Number Publication Date
WO1980001908A1 true WO1980001908A1 (fr) 1980-09-18

Family

ID=21801741

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1980/000208 WO1980001908A1 (fr) 1979-03-16 1980-03-03 Methode de fabrication de fibres optiques

Country Status (7)

Country Link
US (1) US4230473A (fr)
JP (1) JPS56500334A (fr)
CA (1) CA1128756A (fr)
DE (1) DE3036779A1 (fr)
GB (1) GB2058043B (fr)
NL (1) NL8020091A (fr)
WO (1) WO1980001908A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2487811A1 (fr) * 1980-07-31 1982-02-05 Lenoane Goerges Procede et installation de fabrication de fibres optiques en continu
EP0072069A1 (fr) * 1981-08-03 1983-02-16 Koninklijke Philips Electronics N.V. Procédé de fabrication de préformes pour étirer des fibres optiques et appareil pour la fabrication en continue de fibres optiques
FR2530613A1 (fr) * 1982-07-26 1984-01-27 Western Electric Co Procede de fabrication de preformes de fibres optiques

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3240355C1 (de) * 1982-11-02 1983-11-17 Heraeus Quarzschmelze Gmbh, 6450 Hanau Verfahren zur Herstellung eines laenglichen Glaskoerpers mit inhomogener Brechungsindexverteilung
NL8204438A (nl) * 1982-11-16 1984-06-18 Philips Nv Werkwijze en inrichting voor de continue vervaardiging van langgerekte lichamen uitgaande van een ongesmolten uitgangsmateriaal.
DE3518142A1 (de) * 1985-05-21 1986-11-27 Standard Elektrik Lorenz Ag, 7000 Stuttgart Verfahren zur herstellung eines laenglichen glaskoerpers, insbesondere einer vorform fuer lichtwellenleiter
US4755192A (en) * 1987-04-15 1988-07-05 Board Of Regents, The University Of Texas System Processes to condition gas permeable membranes
US5110334A (en) * 1990-07-31 1992-05-05 The United States Of America As Represented By The Secretary Of The Navy Method of producing glass fiber with cores of a different material
US7549447B1 (en) * 2007-12-01 2009-06-23 Joe Garbo Pressure valve inlet cover system

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE28028E (en) * 1972-01-03 1974-06-04 Method op forming an economic optical waveguide fiber
USRE28029E (en) * 1972-01-03 1974-06-04 Method of forming optical waveguide fibers
US3966446A (en) * 1975-10-23 1976-06-29 Bell Telephone Laboratories, Incorporated Axial fabrication of optical fibers
DE2531237A1 (de) * 1975-07-12 1977-01-20 Licentia Gmbh Verfahren zur herstellung eines fadenfoermigen lic8tleiters
DE2605483A1 (de) * 1976-02-12 1977-08-18 Licentia Gmbh Verfahren zur herstellung eines lichtleiters
US4062665A (en) * 1976-04-06 1977-12-13 Nippon Telegraph And Telephone Public Corporation Continuous optical fiber preform fabrication method
US4065280A (en) * 1976-12-16 1977-12-27 International Telephone And Telegraph Corporation Continuous process for manufacturing optical fibers
US4135901A (en) * 1974-12-18 1979-01-23 Sumitomo Electric Industries, Ltd. Method of manufacturing glass for optical waveguide
US4155733A (en) * 1976-06-01 1979-05-22 International Standard Electric Corporation Optical fibre manufacture
US4198223A (en) * 1977-05-17 1980-04-15 International Telephone And Telegraph Corporation Continuous fiber fabrication process

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50105917A (fr) * 1974-01-28 1975-08-21
DE2840493A1 (de) * 1978-09-18 1980-03-27 Siemens Ag Frequenzselektives optisches lichtverteilerelement und verfahren zu seiner herstellung

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE28028E (en) * 1972-01-03 1974-06-04 Method op forming an economic optical waveguide fiber
USRE28029E (en) * 1972-01-03 1974-06-04 Method of forming optical waveguide fibers
US4135901A (en) * 1974-12-18 1979-01-23 Sumitomo Electric Industries, Ltd. Method of manufacturing glass for optical waveguide
DE2531237A1 (de) * 1975-07-12 1977-01-20 Licentia Gmbh Verfahren zur herstellung eines fadenfoermigen lic8tleiters
US3966446A (en) * 1975-10-23 1976-06-29 Bell Telephone Laboratories, Incorporated Axial fabrication of optical fibers
DE2605483A1 (de) * 1976-02-12 1977-08-18 Licentia Gmbh Verfahren zur herstellung eines lichtleiters
US4062665A (en) * 1976-04-06 1977-12-13 Nippon Telegraph And Telephone Public Corporation Continuous optical fiber preform fabrication method
US4155733A (en) * 1976-06-01 1979-05-22 International Standard Electric Corporation Optical fibre manufacture
US4065280A (en) * 1976-12-16 1977-12-27 International Telephone And Telegraph Corporation Continuous process for manufacturing optical fibers
US4198223A (en) * 1977-05-17 1980-04-15 International Telephone And Telegraph Corporation Continuous fiber fabrication process

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PROCEEDINGS OF THE IEEE SEPTEMBER 1974 "A new technique for the preparation of low-loss and graded-index optical fibers" pages 1280-1281. *
THE AMERICAN CERAMIC SOCIETY BULLETIN, volume 55, number 5, issued May 1976, "Preparation and structural characteristics of high silica graded indecx fibers" P.B. O'Connor et al., pages 513-516 and 519. *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2487811A1 (fr) * 1980-07-31 1982-02-05 Lenoane Goerges Procede et installation de fabrication de fibres optiques en continu
EP0072069A1 (fr) * 1981-08-03 1983-02-16 Koninklijke Philips Electronics N.V. Procédé de fabrication de préformes pour étirer des fibres optiques et appareil pour la fabrication en continue de fibres optiques
FR2530613A1 (fr) * 1982-07-26 1984-01-27 Western Electric Co Procede de fabrication de preformes de fibres optiques

Also Published As

Publication number Publication date
GB2058043A (en) 1981-04-08
JPS56500334A (fr) 1981-03-19
NL8020091A (nl) 1981-01-30
GB2058043B (en) 1983-10-05
US4230473A (en) 1980-10-28
CA1128756A (fr) 1982-08-03
DE3036779A1 (en) 1981-04-23

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